73 TR6 w/ 1227747 ECU - could use a little help

[ony]

I don't know for sure get you a data log with tuner pro. 14 initial and 18 in the main spark table is a lot of timming at idle, my v6 would have surging as I would tune it then after I got done and added the ve tables back to gather and run it a few days it seamed to help. if the 7747 bin started out as a v8 you might be better of starting wit a v6 bin. the one I posted is for a standard trans. the mean rich lean o2 setting is a lot higher on v6 bins witch can cause it all so.

[murr32]

UPDATE: Reducing PRP - Gain vs Error and PRP - Gain vs airflow by 25% eliminated the SOTP variation in steady state cruise but still showed a fair bit of AFR variation on the WB, +/- 0.5 or so. A further 25% reduction (50% from stock) now gives a WB AFR reading of 14.6 - 14.8 at steady state cruise. I also tweaked the idle offset and now idle at 13.8 AFR.

Now if Canada Post would just deliver my VSS...

[jim_in_dorris]

Your BPW is set for a 350 with 61# injectors, I am sure that is part of the problem

[murr32]

I'm confused, the BPW is set to 95 which I believe is correct for a 2.5L 6 cyl w/ 50# injectors, at least that is what I get when I use any of the calculators floating around.

[jim_in_dorris]

Sorry, my bad. I looked at the wrong bin file. I went back and looked again, it is 95.

[ony]

I would use the compare bin in tuner pro and compare your bin and the apab bin you may see a lot of things in the scalers and tables that turns on your idea light bulb.